August Weather at Khartoum International Airport SudanDaily high temperatures are around 98°F, rarely falling below 91°F or exceeding 104°F. The lowest daily average high temperature is 98°F on August 13. Daily low temperatures are around 80°F, rarely falling below 76°F or exceeding 84°F. The lowest daily average low temperature is 80°F on August 17. For reference, on May 28, the hottest day of the year, temperatures at Khartoum International Airport typically range from 86°F to 106°F, while on January 16, the coldest day of the year, they range from 63°F to 86°F. The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on August. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day. Ndioum, Senegal (3,131 miles away) is the far-away foreign place with temperatures most similar to Khartoum International Airport (view comparison). CloudsThe month of August at Khartoum International Airport experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 61% throughout the month. The highest chance of overcast or mostly cloudy conditions is 62% on August 27. The clearest day of the month is August 1, with clear, mostly clear, or partly cloudy conditions 40% of the time. For reference, on August 26, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 62%, while on November 14, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 84%. PrecipitationA wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. At Khartoum International Airport, the chance of a wet day over the course of August is rapidly decreasing, starting the month at 26% and ending it at 18%. For reference, the year's highest daily chance of a wet day is 28% on August 9, and its lowest chance is 0% on January 23. RainfallTo show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day. The average sliding 31-day rainfall during August at Khartoum International Airport is gradually decreasing, starting the month at 1.5 inches, when it rarely exceeds 3.2 inches or falls below 0.3 inches, and ending the month at 1.0 inches, when it rarely exceeds 2.3 inches or falls below 0.1 inches. The highest average 31-day accumulation is 1.5 inches on August 5. SunOver the course of August at Khartoum International Airport, the length of the day is gradually decreasing. From the start to the end of the month, the length of the day decreases by 23 minutes, implying an average daily decrease of 46 seconds, and weekly decrease of 5 minutes, 19 seconds. The shortest day of the month is August 31, with 12 hours, 26 minutes of daylight and the longest day is August 1, with 12 hours, 48 minutes of daylight. The earliest sunrise of the month at Khartoum International Airport is 5:31 AM on August 1 and the latest sunrise is 5 minutes later at 5:37 AM on August 31. The latest sunset is 6:20 PM on August 1 and the earliest sunset is 18 minutes earlier at 6:02 PM on August 31. Daylight saving time is not observed at Khartoum International Airport during 2024. For reference, on June 20, the longest day of the year, the Sun rises at 5:19 AM and sets 13 hours, 3 minutes later, at 6:23 PM, while on December 21, the shortest day of the year, it rises at 6:11 AM and sets 11 hours, 12 minutes later, at 5:24 PM. The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation. MoonThe figure below presents a compact representation of key lunar data for August 2024. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.
HumidityWe base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night. The chance that a given day will be muggy at Khartoum International Airport is essentially constant during August, remaining within 4% of 65% throughout. The highest chance of a muggy day during August is 69% on August 13. For reference, on August 13, the muggiest day of the year, there are muggy conditions 69% of the time, while on February 6, the least muggy day of the year, there are muggy conditions 0% of the time. WindThis section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages. The average hourly wind speed at Khartoum International Airport is decreasing during August, decreasing from 11.0 miles per hour to 9.0 miles per hour over the course of the month. For reference, on February 16, the windiest day of the year, the daily average wind speed is 12.3 miles per hour, while on September 30, the calmest day of the year, the daily average wind speed is 7.4 miles per hour. The hourly average wind direction at Khartoum International Airport throughout August is predominantly from the south, with a peak proportion of 68% on August 7. Growing SeasonDefinitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere). Temperatures at Khartoum International Airport are sufficiently warm year round that it is not entirely meaningful to discuss the growing season in these terms. We nevertheless include the chart below as an illustration of the distribution of temperatures experienced throughout the year. Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F. The average accumulated growing degree days at Khartoum International Airport are very rapidly increasing during August, increasing by 1,033°F, from 6,750°F to 7,783°F, over the course of the month. Solar EnergyThis section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation. The average daily incident shortwave solar energy at Khartoum International Airport is essentially constant during August, remaining within 0.1 kWh of 5.8 kWh throughout. The lowest average daily incident shortwave solar energy during August is 5.8 kWh on August 18. TopographyFor the purposes of this report, the geographical coordinates of Khartoum International Airport are 15.590 deg latitude, 32.553 deg longitude, and 1,263 ft elevation. The topography within 2 miles of Khartoum International Airport contains only modest variations in elevation, with a maximum elevation change of 187 feet and an average elevation above sea level of 1,264 feet. Within 10 miles also contains only modest variations in elevation (210 feet). Within 50 miles contains only modest variations in elevation (689 feet). The area within 2 miles of Khartoum International Airport is covered by artificial surfaces (87%), within 10 miles by artificial surfaces (59%) and cropland (28%), and within 50 miles by bare soil (53%) and sparse vegetation (20%). Data SourcesThis report illustrates the typical weather at Khartoum International Airport, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016. Temperature and Dew PointKhartoum International Airport has a weather station that reported reliably enough during the analysis period that we have included it in our network. When available, historical temperature and dew point measurements are taken directly from this weather station. These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required. There are no other weather stations in our network within 200 kilometers of this location. Consequently, in the case of missing or erroneous measurements from this station, we fall back on NASA's MERRA-2 modern-era reanalysis , adjusted according to typical seasonal and diurnal differences between this station and the wide-area MERRA-2 reconstructed values.Other DataAll data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus. All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid. Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations. Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory. Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database . Time zones for airports and weather stations are provided by AskGeo.com . Maps are © OpenStreetMap contributors. DisclaimerThe information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site. We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands. 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